EPA Webinar on ENERGY STAR Version 5.0 Residential Water Heaters Specifications

On October 13, the US Environmental Protection Agency (EPA) will be hosting a webinar for members and other industry stakeholders to discuss the first draft of the ENERGY STAR Version 5.0 Residential Water Heaters specification.

The EPA says it will be proposing “significant increases in the criteria for gas-fired water heaters.”  The ENERGY STAR Version 5.0 Residential Water Heaters Draft 1 specification “reflects changes to ensure ENERGY STAR gas-fired criteria represent the most energy efficient technology.”

With respect to Canada, the “EPA had maintained Energy Factor (EF) criteria as an option for the certification of products sold only in Canada, as well as Thermal Efficiency (TE) criteria for products on the residential market with input rates between 75,000 and 100,000 Btu per hour, and up to 100 gallons storage volume.”

However, given that “Natural Resources Canada has confirmed that maintaining two sets of criteria is no longer necessary … all efficiency requirements in this specification will be made with the Uniform Energy Factor (UEF) or Solar Uniform Energy Factor (SUEF) metrics.”

The announcement also notes that “calculated savings associated with the proposed criteria are 80 therms ($81) per year for gas-fired water heaters under 55 gallons, 45 therms ($46) per year for gas-fired water heaters 55 gallons or greater, and 31 therms ($31) per year for gas-fired instantaneous water heaters. The national electric savings potential for gas-fired storage and instantaneous water heaters is over 5,000 million therms, or over 27 MMT CO2e.”

The webinar on the proposed criteria and test method will be held on October 13, 12:00 pm – 2:00 pm EST.

Interested members can RSVP here for the webinar.

Please submit any comments to WaterHeaters@energystar.gov by November 11, 2021.

All comments will be posted to the ENERGY STAR Water Heaters Version 5.0 Product Development website unless the submitter requests otherwise.

Please direct any specific questions to Abigail Daken at EPA, Daken.Abigail@epa.gov or 202-343-9375, and Morganne Blaylock at ICF, Morganne.Blaylock@icf.com or 202-862-2952.

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